Because you are at a perfectly normal, healthy (and likely good-looking) weight for your height. Your body likes to stay normal. There are about a million feedback loops to keep you steady. Weight stability is actually a sign of good health. We are not all destined to some arbitrarily chosen ideal weight, or visible abs, or whatever.

Hi, JC, and welcome!

I know 2 weeks can feel like forever when you're working with your foods. I have to say a few things that I believe to be accurate but may not necessarily what you want to hear.

If you are absolutely determined to lose weight, you probably can do it. However, you'll need to relax and be well-rested and not stressed. Are you sleeping good and getting enough rest? Could you be too active and in need of a rest day or two?

I'm not sure how much you've already changed up what you're eating, but about once per week I'd change again--some days eat more, not less, and eat at different times, etc. One week eat fish, another week beef, etc., to see how you react.

Have you tried intermittent fasting (IF) at all? Most people don't try it until they've been eating this way a little longer than you have but since you're active and already at a relatively normal weight you may need to do some weekly experiments to find a food program that works the way you want.

Is your waist lean or do you tend to carry body fat there? I'm assuming it's lean given the height and weight you described, but if it isn't you could have some leptin resistance going on and you'd want to check out the leptin RX.

If you haven't yet and there's no obstacle, I'd start each day for a week or so with fatty beef. That should definitely convince your body that times are good and it's okay to release any stored fat you're trying to get rid of.

Just keep trying different things at weekly intervals and see what happens. And above all, relax!

I've asked a similar question a few days ago - my problem was that I was actually gaining on paleo, even though I wasn't eating any more calories than before - http://paleohacks.com/questions/90250/has-paleo-permanently-lowered-my-metabolism#axzz1jNP06Lyy

The answers came to down to either (a) your body becomes more efficient at converting food, therefore you need fewer calories than before or (b) carb intake is too low, especially if you work out a lot.

I am currently experimenting to see if (b) is true, by increasing my net carb intake to about 130 grams a day.

Depending on how you feel, I'd say you're either training too much for what you're eating or you're eating more than you need. But in my experience, two weeks is the minimum to establish an average weight and I'd rather take a month if possible to establish a 'base' weight for a significant change in diet. That also gives more time to judge if you're recovering well or whether you're actually putting your body under too much stress. It may just take a 'refeed' day once a week to support your body - and if you combine it with a fasting day then you can maintain the calorie control that will encourage fat loss.

Also, it might be worth trying a bigger breakfast, and judging the rest of your meals based on need. There's a lot to learn and adjust to, so just be confident that you are doing good things for your body, concentrate on other measures and goals.

At 5'8" and 145, I don't think you are doing anything "wrong" because that seems like a perfectly healthy weight. That may just be the weight your body likes to be at, and it looks like you are eating good foods. If you want to lose ten lbs, you can certainly do that by trying the tips provided by the other folks on here, but it may be tough to maintain. I'd like to be 135 also (I'm 5'5") but it just doesn't seem sustainable for me. Either way, I hope you stick with paleo, and good luck :)

Your diet looks pretty fine to me...what sticks out is six punishing workouts a week. Yikes! How's your recovery? Energy? Sleep? Anytime I do more than 4 seriously intense workouts in a week, my cortisol shoots up, I get a bit pudgy, and I gain four pounds that don't leave for a week. If you're open to it, you might try just the three crossfit workouts, focusing on lifting heavy, and trade the spinning for walks and yoga, or just making sure you get enough sleep.

Hormones are another things to consider, and trying (not simultaneously) bringing carbs to 100-150 g/day as well as IF...some people do great on the former, some thrive on the latter. You'll know within a week which is for you.

I agree with the workouts. Whenever I workout too much I never lose weight. Once I sit on my butt and do nothing, it falls off. I am not sure why because usually I eat the same. Your meals look similar to mine but I don't eat breakfast. I am losing 3 lbs per week and I only have 6 vanity lbs to lose.

@ JC...your weight, height and goals are shockingly identical to mine, I am truly completely lost for myself, I wish I could offer more advice...but I have been doing 24-48hr fasts for the last week or so...dont know if it will help, i feel like an IF just depletes your glycogen so you appear like you have lost, but the minute you eat anything, you appearance goes back...so I am very confused myself. Please do post your progress if you can...I'd love to feed off!

I would cut down on working out. I bet your cortisol levels are really out of wack. Another option is an intermittent fasting (16 hours with no food). This is a bad idea if its your cortisol issue though.

So in my opinion i would cut down to no more then 3 really hard days of working out for about a month and see what happens.

Just my thoughts, Matt

I don't know why everyone here is saying that you're likely "eating too much". For your activity level and height/weight I would actually say that you are likely not eating ENOUGH! It doesn't say what your exact portions are but i'm willing to bet that you don't clear 1200 calories/day eating like that. Effectively losing body fat does not necessarily mean eat as little as you can manage..it just stresses your body out, and with all the exercise your body is probably under enough stress as it is. eat more protein. eat more fat.

also i have read that some people don't do too well with virtually no carbohydrates - perhaps try some berries and eat sweet potatoes more often.

Well, it's a little late now, but I'm willing to bet the OP's problem was severe overtraining combined with not enough calories causing her body to go into lockdown. When I hear of some people's workout regimens they just sound like pure punishment.

It would have been nice to hear a followup report.

This may be a silly question, but have you been measuring yourself on a weekly basis? I have many times been stuck at a number (or seen it go up), only to measure and find out I traded some fat for muscle and lost inches. Sometimes it's a good backup to keep track of, as it can show you progress that the scale won't.

That said, if you have been and still stuck, I would be patient. Keep a daily log for a week and track what's going in each day (you may find something that is stalling you that you never thought of before), and don't give up staying active! If you feel like maybe too much exercise is a problem, cut down to 2x a week if your Crossfit allows, and walk instead (or something).

Experiment with what you're doing, but hang in there. Bodies can be picky and stubborn. Sometimes they just need time to accept a new lifestyle before they let go!

Have you been tested for hypothyroidism - no matter what you do if you have this condition you wont lose weight until it is being treated. I was in a similar situation to you, no matter how well I ate or exercised I couldn't shift excess weight. It was only when I was diagnosed and treated for hypothyroidism that the weight problems went away.

I asked a similar question yesterday ...the advice I was given was to cut out the chicken, nuts, and wine.